Bell & Gossett DN0147D HS Underground Condensate and Boiler Feed Units Series UHM - Manual (Page 4)

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1. Assure that the unit is piped in accordance with instructions
on page 2.
2. Isolate tank before performing any system leak test. Do not
pressurize the tank as part of the leak test. Failure to do this
can result in serious injury or death.
3. Check floats and alternators for free operation.
4. Check power leads in accordance with wiring diagram
enclosed in control cabinet (when furnished).
5. Install drain plugs.
6. Fill receiver half full of water to prime pump(s) and prevent
possible damage to pump seals. Avoid freezing conditions
after unit receiver has been filled.
7. Check for proper rotation of all three phase motors. Rotation
must be clockwise looking down on the motor as indicated by
directional arrow on pump casting. If pump runs backwards,
interchange two wires (3 phase only).
8. Throttle plug cock in discharge line until pressure at pump
(while pump is discharging) approaches pump rated pressure.
Tighten plug nut to secure adjustment.
*9.Connect the water make-up assembly to city water. Use pip-
ing at least as large as the valve piping provided. Provide a
manual fill valve if not included on the unit.
*10. Boiler Level Controls
Assure that the controls on and related to the boiler match the
control systems provided on the unit (see the wiring diagram
furnished) (applicable when electrical control panel is furnished).
*11.Check that the pump discharge pressure exceeds the maxi-
mum operating pressure of the boiler.
*12.Manually move the make-up water float indicator and assure
that the make-up solenoid admits water.
*13.Manually move the low water cut-off float switch indicator to
check for pump shut-off. (When furnished)
14. Remove start-up label (below) from panel (if applicable) after
complying with instructions.
15. If possible, observe operation thru several cycles.
PUTTING THE UNIT INTO SER VICE
(ITEMS MARKED * FOR UHM ONLY)
WARNING: HIGH VOLTAGE
Disconnect and lock out power before connecting or
servicing unit. Failure to follow these instructions could
result in serious injury or death.
WARNING: MAINTAIN BOILER SAFETY FEATURES
When connecting the boiler feed unit to the boiler,
assure that all boiler safety controls (burner cutoff, etc.) are
and remain operational. With certain control arrangements,
dedicated boiler controllers are required for the boiler feed
pumps. Failure to follow these instructions could result in
serious injury, death or extensive property damage.
CAUTION: DO NOT RUN DRY.
SEAL DAMAGE MAY OCCUR.
Inspect pump seal regularly for leaks. Replace as required.
Failure to follow these instructions could result in injury or
property damage.
ELECTRICIAN/INSTALLER/OPERATOR
REMOVE AND DESTROY THIS TAG AFTER —
1. ASSURING THAT ALL PUMPS ROTATE CLOCKWISE PER ARROWS CAST ON VOLUTES. (JOG
PUMP MOMENTARILY TO TEST – INTERCHANGE ANY TWO MOTOR POWER WIRES TO
REVERSE 3PH MOTORS.)
2. ASSURING THAT SHIPPING LOCKS HAVE BEEN REMOVED FROM ALL FLOAT SWITCHES.
WARNING: EXPLOSIBLE
Do not pressurize receiver. Isolate receiver during
leak test. Do not plug overflow. Do not restrict vent opening
to atmosphere. Open valves slowly. Failure to follow these
instructions could result in serious injury or death.
OPERA TION AND MAINTENANCE
Operators must be familiar with all sections of this manual to
understand the operation of the unit.
Hot water, steam and electricity can be hazardous.
Check motor nameplate for any lubrication requirements.
LUBRICATION
The only pump bearing requiring lubrication is the ball bearing in
the motor support just below the flexible coupling. It has a reser-
voir, which is filled with moisture resistant high temperature
grease.
Remove pipe plug in motor support and add approximately 3
ounces of Shell Alvania RL 2 grease (or equivalent) from once a
year (normal) to twice a year for extremely hot conditions. Do not
use ordinary grease.
NOTICE / AUTO RESTART
Single phase motors wil restart automatically after thermal over
-
load protector trips.
Overload thermal relays in starters must be reset manually.
A properly installed unit should function unattended for long
periods of time. Peroidic checks to assure proper operation are
highly recommended. Refer to trouble shooting section when
necessary.
A variety of control options are available and are furnished in
accordance with user specifications. Refer to wiring diagrams
(when furnished) to determine control switch settings.
The inlet starter (when furnished) is intended to prrotect the pump
and system. Peroidic cleaning should be included in the mainte-
nance schedule. Check frequently in new systems.
WARNING: HIGH VOLTAGE
Disconnect and lock out power before connecting or
servicing unit. Failure to follow these instructions could
result in serious injury or death.
SAFETY INSTRUCTIONS
SEE COVER OF THIS MANUAL
WARNING: EXPLOSIBLE
Do not pressurize receiver. Isolate receiver during
leak test. Do not plug overflow. Do not restrict vent opening
to atmosphere. Open valves slowly. Failure to follow these
instructions could result in serious injury or death.
CAUTION: SUBSEQUENT DAMAGE
A unit showing symptoms of possible problems
(overflow, noise, leaks, vibrations, continual operation, etc.)
must be corrected immediately. Failure to follow these
instructions may result in full liability for subsequent injury
or property damage.
WARNING: EXPLOSIBLE
The installed boiler feed unit becomes an intergral
part of the boiler feed system. Boiler operation and mainte-
nance requires specific skills and training and may require
licensing or certification. The boiler feed unit must be oper-
ated and maintained so as not to jeopardize the boiler
operation. Failure to follow these instructions could result in
serious injury or death.
CAUTION: DO NOT REVERSE
Reverse operation can cause extensive damage to
pumps. Jog the motor to test for direction of rotation. Failure
to follow these instructions could result in injury or property
damage.